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107 lines
3.3 KiB
107 lines
3.3 KiB
try {
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// Check if config.json exists
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require('./config.json');
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} catch (err) {
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console.error('No config.json found! Please run \'npm run setup\'');
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process.exit(1);
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}
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// Load the config
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const { host, port, domain, useSsl, resourceIdSize, resourceIdType } = require('./config.json');
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//#region Imports
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const fs = require('fs-extra');
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const uuid = require('uuid').v4;
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const express = require('express');
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const useragent = require('express-useragent');
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const multer = require('multer');
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const zws = require('./idgen/zws');
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const { path, saveData, log, verify, generateId } = require('./utils');
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//#endregion
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//#region Variables, module setup
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const app = express();
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const upload = multer({ dest: 'uploads/' });
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var tokens = [];
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var data = {};
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//#endregion
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preStartup();
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startup();
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function preStartup() {
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// Make sure data.json exists
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if (!fs.existsSync(path('data.json'))) {
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fs.writeJsonSync(path('data.json'), data, { spaces: 4 });
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log('File [data.json] created');
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} else log('File [data.json] exists');
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// Make sure auth.json exists and generate the first key
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if (!fs.existsSync(path('auth.json'))) {
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tokens.push(uuid().replace(/-/g, ''));
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fs.writeJsonSync(path('auth.json'), { tokens }, { spaces: 4 });
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log(`File [auth.json] created\n!! Important: save this token in a secure spot: ${tokens[0]}\n`);
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} else log('File [auth.json] exists');
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// Read tokens and data
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tokens = fs.readJsonSync(path('auth.json')).tokens;
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data = fs.readJsonSync(path('data.json'));
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log('Tokens & data read from filesystem');
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}
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function startup() {
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app.use(useragent.express());
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// Upload file
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app.post('/', upload.single('file'), (req, res) => {
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if (!verify(req, tokens)) return res.sendStatus(401);
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log(`Uploaded: ${req.file.originalname} (${req.file.mimetype})`);
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// Save the file information
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let resourceId = generateId(resourceIdType, resourceIdSize, req.file.originalname);
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data[resourceId] = req.file;
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saveData(data);
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let http = ('http').concat(useSsl ? 's' : '').concat('://');
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let trueDomain = domain.concat((port != 80 || port != 443) ? `:${port}` : '');
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res.type('json').send({
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resource: `${http}${trueDomain}/${resourceId}`,
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delete: `${http}${trueDomain}/delete/${req.file.filename}`
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});
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});
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// View file
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app.get('/:resourceId', (req, res) => {
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// Don't process favicon requests
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if (req.url.includes('favicon.ico')) return;
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let resourceId = req.params.resourceId.split('.')[0];
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let fileData = fs.readFileSync(path(data[resourceId].path));
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if (data[resourceId])
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res.header('Accept-Ranges', 'bytes').header('Content-Length', fileData.byteLength).type(data[resourceId].mimetype).send(fileData);
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else
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res.sendStatus(404);
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});
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// Delete file
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app.get('/delete/:filename', (req, res) => {
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let filename = req.params.filename;
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let resourceId = Object.keys(data)[Object.values(data).indexOf(Object.values(data).find((d) => d.filename == filename))];
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if (!resourceId || !data[resourceId]) return res.sendStatus(400);
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log(`Deleted: ${data[resourceId].originalname} (${data[resourceId].mimetype})`);
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// Save the file information
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fs.rmSync(path(data[resourceId].path));
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delete data[resourceId];
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saveData(data);
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res.type('text').send('File has been deleted!');
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})
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app.listen(port, host, () => log(`Server started on [${host}:${port}]\nAuthorized tokens: ${tokens.length}\nAvailable files: ${Object.keys(data).length}`));
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}
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